Home / 1,553.26-2,330.38-513.28

Finding the Fourth Proportional to 1,553.26, 2,330.38 and 513.28

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Solution

The fourth proportional to 1,553.26, 2,330.38 and 513.28 is: 770.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,553.26 : 2,330.38 = 513.28 : x
  2. Step 2: Convert to fraction form
    1,553.26/2,330.38 = 513.28/x
  3. Step 3: Cross multiply
    1,553.26x = 2,330.38 × 513.28
  4. Step 4: Simplify right side
    1,553.26x = 1,196,137.45
  5. Step 5: Solve for x
    x = 1,196,137.45/1,553.26
  6. Step 6: Final answer
    x = 770.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.